/*
The MIT License (MIT)

Copyright (c) 2022 badlyby

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef __DUAL_FACTOR_FIFO_H
#define __DUAL_FACTOR_FIFO_H

#ifdef __cplusplus
 extern "C" {
#endif


#include <stdint.h>
#include <stdbool.h>

#define DFFIFO_PRELOAD

typedef struct {
    volatile uint16_t inIndexA;
    volatile uint16_t outIndexA;
    volatile uint16_t inIndexB;
    volatile uint16_t outIndexB;
    volatile bool inited;
#ifdef DFFIFO_PRELOAD
    uint16_t preSize;
    bool overflow;
#endif
    uint16_t sizeA;
    uint16_t sizeB;
    uint16_t *bufA;
    uint8_t *bufB;
}DFFIFO;

void DFFIFO_Init(DFFIFO *fifo, uint16_t *bufA, uint16_t sizeA, uint8_t *bufB, uint16_t sizeB);
#ifdef DFFIFO_PRELOAD
bool DFFIFO_PreByte(DFFIFO *fifo, uint8_t bits);
bool DFFIFO_PreLoad(DFFIFO *fifo, uint8_t *buf, uint16_t sz);
bool DFFIFO_Complete(DFFIFO *fifo);
#else
bool DFFIFO_Push(DFFIFO *fifo, uint8_t *buf, uint16_t sz);
#endif //DFFIFO_PRELOAD
uint16_t DFFIFO_Pop(DFFIFO *fifo, uint8_t *buf, uint16_t sz);

#ifdef __cplusplus
}
#endif

#endif//__DUAL_FACTOR_FIFO_H
